CN1716314A - Automatic image correction circuit - Google Patents
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
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Abstract
Inside an automatic image correction circuit which processes image correction automatically, a set value can be changed during the image correction without non-ideal statuses such as image confusion etc. When the automatic image correction circuit processes the image correction towards image data automatically, the automatic image correction circuit memorizes the set value which decides the intensity, the range, etc., during the image correction in a register; when the automatic image correction circuit changes the set value memorized in the register, a new set value is read in according timing which is different from the read-out of the set value, therefore, even the set value is changed when the image correction is processed, one frame can not use different set value to process the image correction, and the image confusion caused by the change of the set value can not produced.
Description
Technical field
The present invention relates to automatically carry out the automatic image correcting circuit of image correction.
Background technology
The view data of input is carried out the automatic image correcting circuit of image correction known automaticly.Automatic image correcting circuit is to calculate the statistical information of using from obtained view data image correction, is adapted to the circuit of the image correction of the current image of importing.Automatic image correcting circuit carries out level trim or gamma correction or contrast correction as image correction, emphasizes shown image (enhancing).
Here, in the register in automatic image correcting circuit, information such as intensity (level) when image correction is carried out in the storage decision and scope (below, be called " setting value " simply).This setting value is read when a frame being carried out image correction at every turn.In addition, the correction of image correction changes at any time according to the image of being imported, if setting value does not change forcibly then do not change.
In automatic image correcting circuit in the past, when the setting value that change is stored in the register, need the work of temporary transient halt circuit to set later on.For this reason, if, therefore be difficult to compare with adjusted image before adjusting because in case the reproduction of the image etc. of stopping action, the setting value before then adjusting has changed, inconvenience when the intensity of setting image correction etc.In addition, if, then show sometimes according to original setting value and carried out the part of image correction and the image that has carried out the partially mixed existence of image correction according to new setting value at the change setting midway of continuous live image.That is, by change setting, confusion reigned aspect the image demonstration sometimes.
The content of invention
The present invention finishes in view of above problem points, and problem is automatically to carry out in the automatic image correcting circuit of image correction, and the undesirable situations such as confusion that can not produce display image are carried out the change of the setting value used like that in image correction.
According to a viewpoint of the present invention, the automatic image correcting circuit that automatically carries out image correction for obtained view data possess the storage unit that is stored in the setting value of using in the above-mentioned image correction, read the sensing element of the setting value of said memory cells storage when carrying out above-mentioned image correction for the view data of a frame at every turn, according to the timing different with above-mentioned sensing element, in said memory cells, write the writing unit of new setting value.
Above-mentioned automatic image correcting circuit is to obtain view data such as rest image or live image, automatically these view data is carried out the circuit of image correction.Automatic image correcting circuit has intensity, threshold value of storing when carrying out image correction and the storage unit of carrying out the information such as scope of image correction.Setting value does not change with the image of being imported, only otherwise change does not then just change forcibly.The setting value of storing in the storage unit is read by sensing element when a frame image data being carried out image correction at every turn.This setting value changes to new setting value by the user.In this case, writing unit writes new setting value according to the timing different with reading of setting value in storage unit.Thus, when carrying out image correction, even the change of setting value is arranged, a frame is not used different setting values yet and is carried out image correction.Thus, can not pass through change setting, confusion reigned in shown image.Thereby the change of setting value is carried out in the reproduction of the image of can not stopping action halfway etc.
Under a form of the present invention, in the automatic image correcting circuit, said memory cells has the 1st register and the 2nd register, above-mentioned sensing element reads out in the setting value of storing in above-mentioned the 2nd register, above-mentioned writing unit has the 1st writing unit and the 2nd writing unit, above-mentioned the 1st writing unit writes above-mentioned new setting value in above-mentioned the 1st register, above-mentioned the 2nd writing unit is written to the setting value of storing in above-mentioned the 1st register in above-mentioned the 2nd register.
Under this form, automatic image correcting circuit has the 1st register and the 2nd register of the above-mentioned setting value of storage.The setting value of using in image correction is read the value of storing in the 2nd register when carrying out image correction.In addition, above-mentioned writing unit has the 1st writing unit and the 2nd writing unit.In this case, the 1st writing unit writes new setting value in the 1st register, and the 2nd writing unit writes the setting value of storing in the 1st register in the 2nd register.In desirable example, the 2nd writing unit is written to the setting value of storing in above-mentioned the 1st register in the 2nd register according to the frame switching timing of view data.Thereby, because the 1st writing unit is different with the timing of the processing of the 2nd writing unit, even therefore produce the change of setting value in interframe, in the 1st register, to store in the new setting value, the setting value of storing in the 2nd register can be by new setting value change.Thus, when the new setting value of the 1st register-stored the time, be used in the setting value (that is setting value before changing) of storing in the 2nd register and carry out image correction.And, because the timing when next frame is carried out image correction, the new setting value of storage in the 2nd register, so this frame uses the new setting value of reading from the 2nd register to carry out image correction.According to the above, automatic image correcting circuit can not be subjected to the timing of change setting,, imports the influence of the timing of new setting value that is, for a frame, carries out image correction aptly with a setting value.In addition, can not seem to remain real-time demonstration by people's eyes identification from change setting to the constant time lag that shows.
Above-mentioned automatic image correcting circuit is useful in the electronic equipment that possesses image-display units aptly.
Description of drawings
Fig. 1 represents the schematic configuration of the automatic image correcting circuit of the invention process form.
The schematic configuration of Fig. 2 presentation video correction decision unit.
Display image example when the interframe that is illustrated in Fig. 3 has changed setting value.
Fig. 4 represents the schematic configuration of the automatic image correcting circuit of variation of the present invention.
Fig. 5 represents the object lesson of the setting value of storing in the register.
Fig. 6 illustrates the schematic configuration of the register of the embodiment of the invention.
Fig. 7 is the sequential chart of the input/output signal of the register when having changed setting value.
Fig. 8 is the circuit block diagram that has been suitable for the electronic equipment of automatic image correcting circuit of the present invention.
Fig. 9 is the example that has been suitable for the electronic equipment of automatic image correcting circuit of the present invention.
The explanation of symbol
11: main I/F
The 12:YUV converter unit
13: image correction amount decision unit
15: the image correction unit
16: register cell
161,162: register
The 17:RGB converter unit
100,101: automatic image correcting circuit
Embodiment
Below, with reference to description of drawings best example of the present invention.
The structure of automatic image correcting circuit
Use Fig. 1 that the automatic image correcting circuit 100 of the invention process form is described.The schematic configuration of the automatic image correcting circuit 100 of expression the invention process form among Fig. 1.
Automatic image correcting circuit 100 possesses main I/F11, YUV converter unit 12, image correction amount decision unit 13, image correction unit 15, register cell 16, RGB converter unit 17.Automatic image correcting circuit 100 is to obtain view data such as rest image or live image, automatically these view data is carried out the circuit of image correction according to each frame.Automatic image correcting circuit 100 is mainly emphasized the image correction of the image that (enhancing) is shown.In addition, automatic image correcting circuit 100 can carry in possessing the electronic equipment of image-display units.For example, in portable telephone that possesses liquid crystal display etc. as display unit or portable terminal device, can be arranged on to display unit and supply with in the graphics processing unit of display image data or the internal drive of liquid crystal display etc.
The corresponding signal d21 of the setting value that main I/F11 obtains the signal d11 corresponding with view data from the outside, use when carrying out image correction, become the clock signal clk of benchmark when in automatic image correcting circuit 100, handling.
View data d11 server on for example various recording mediums such as image output devices such as digital still camera or video camera or scanner, storage card, floppy disk, CD-ROM, hard disk, internet or the network etc. is obtained.In addition, establish the data input of view data d11 with the RGB form.Setting value d21 for example obtains by the input from the user.This setting value d21 is the information that comprises intensity or the threshold value when carrying out image correction or carry out the scope etc. of image correction.Setting value d21 is not with the image change of input, and short of change does not forcibly then just change.In the clock signal clk, the clock signal of using when comprising frame synchronizing signal and writing above-mentioned setting value.
Main I/F11 outputs to YUV converter unit 12 to view data d12.And then main I/F11 outputs to register cell 16 to setting value d22.In addition, main I/F11 supplies to register cell 16 to frame synchronizing signal V_SYNC.The frame synchronizing signal V_SYNC that is input in the register cell 16 uses when register cell 16 output setting values.In addition, main I/F11 also supplies with clock signal IN_CLK to register cell 16.This clock signal IN_CLK uses when being input to the new setting value that has changed in the register cell 16.In addition, narrate in the back for the details that writes processing of the register cell 16 that has used clock signal IN_CLK and frame synchronizing signal V_SYNC about setting value.
Image correction amount decision unit 13 determines and the suitable correction of intensity (level) of carrying out image correction for the view data d14 of obtained YUV form.Specifically, image correction amount decision unit 13 is asked about the histogram (frequency table) of the gray-level value of the brightness of view data d14 or colourity or mean value etc., the intensity that decision will be revised for view data d14.Image correction amount decision unit 13 determined correction d15 output to image correction unit 15.
Here, use Fig. 2 key diagram as the concrete processing in the correction decision unit 13.Image correction amount decision unit 13 possesses histogram generation unit 131, statistic computing unit 132 and correction-amount calculating 134.
Histogram generation unit 131 generates the histogram about the gray-level value of the brightness of obtained view data d14 and colourity.In addition, histogram generation unit 131 also calculates the summation about the gray-level value of brightness and colourity simultaneously.Output to statistic computing unit 132 with above-mentioned such histogram that generates and the corresponding signal d14a of summation.In addition, histogram generation unit 131 carries out above-mentioned processing in an image duration.
Statistic computing unit 132 calculates brightness and the relevant statistic of colourity with view data according to for signal d14 obtained histogram and summation.Specifically, statistic computing unit 132 calculates the maximum/minimum and the mean value of the gray-level value of brightness and colourity.And then statistic computing unit 132 also calculates the standard deviation about the gray-level value of brightness.132 of statistic computing units output to correction-amount calculating 134 with the corresponding signal d14b of statistic as described above.In addition, statistic computing unit 132 promptly, after the processing of a frame that finishes to be undertaken by histogram generation unit 131, carries out above-mentioned processing after having switched frame.
Correction-amount calculating 134 is calculated the intensity of revising for view data (that is correction) according to obtained statistic d14b.Specifically, correction-amount calculating 134 compute level correction factors, gamma correction and contrast correction amount.Corresponding signal d15 outputs to image correction unit 15 with the correction that calculates like this.In addition, in the time of correction-amount calculating 134 computed corrections, also carry out scene detection for view data.
Turn back to Fig. 1, register cell 16 is described.The setting value that becomes benchmark of intensity when image correction is carried out in register cell 16 storage decisions or scope etc.Basically, register cell 16 outputs to image correction unit 15 to the setting value d23 of storage according to the timing of the frame synchronizing signal V_SYNC that supplies with from main I/F11.Details about the particular content of the setting value of register cell 16 storage is narrated in the back.
The undesirable situation that produces when using Fig. 3 that the setting value of storing in the change register cell 16 is described here.Be illustrated in to Fig. 3 pattern the setting value of using in the correction of a plurality of continuous frame images that constitute live image.In Fig. 3 (a)～(c), the tabulation of on the left side is shown in the image that shows in the 1st frame respectively, and the tabulation in the centre is shown in the image that shows in the 2nd frame, and tabulation on the right is shown in the image that the 3rd frame shows.Though each image is an image of having finished image correction, shown in Figure 3 is not each two field picture itself, but represents to use same setting value to carry out the zone of image correction with identical hacures.
Fig. 3 (a) expression only uses setting value " x " to carry out the image of image correction.In addition, setting value " x " is made of a plurality of parameters.In this case, display image A11 in the 1st frame, display image A12 in the 2nd frame is at the 3rd frame display image A13.These shown image A 11, A12, A13 are owing to carry out image correction with same setting value " x ", thus in shown image confusion reigned not.
Fig. 3 (b) is illustrated in the image that shows in the processing procedure of the 2nd frame when setting value " x " changes to " y ".In addition, the graphical representation shown in Fig. 3 (b) in general automatic image correcting circuit, shown image when being input to new setting value " y " in the register.In addition, setting value " y " is made of a plurality of parameters.In this case, display image A21 in the 1st frame, display image A22 in the 2nd frame is at the 3rd frame display image A23.In the 1st frame, show the image A 21 of having carried out image correction with setting value " x ".On the other hand, in the 2nd frame,, therefore show with setting value " x " and carried out the image A 22a of image correction and the image A 22 of having carried out the image A 22b mixing existence of image correction with setting value " y " owing to change setting in the image correction process.That is confusion reigned in the image that in the 2nd frame, shows.And, in the 3rd frame, show the image A 23 of having carried out image correction with setting value " y ".
Like this, if in the image correction process, carry out the change of setting value, then, a two field picture carries out image correction, therefore confusion reigned in shown image owing to using different setting values.In view of this point, in the automatic image correcting circuit 100 of this example, constitute register cell 16, even make the change of setting value is arranged in the image correction process of live image, also can be in shown image confusion reigned not, carry out image correction.
Below, the register cell 16 of this example is described.The register cell 16 of this example has the 1st register and the 2nd register.In these the 1st registers and the 2nd register, store setting value.And then the 1st register is connected with the 2nd register, and the signal of exporting from the 1st register is input to the 2nd register, and the 1st register is imported new setting value under the situation of the change of having carried out setting value.The 2nd register outputs to image correction unit 15 to the content of storage.That is, in image correction, use the setting value of storing in the 2nd register.In addition, the 2nd register is obtained new setting value from the 1st register under the situation of the change of having carried out setting value.
And then, for the 1st register and the different clock signal of the 2nd register input.For this reason, the output of the 1st register and the 2nd register is regularly different.Equally, the timing of the signal imported of storage is also different.Below, the clock signal that supplies to the 1st register as the 1st clock signal, the clock signal that supplies to the 2nd register as the 2nd clock signal.As mentioned above, the setting value of storing in the 2nd register is owing to use in image correction, and therefore the 2nd clock signal is the signal identical with frame synchronizing signal V_SYNC.In addition, the 1st clock signal and the 2nd clock signal separate (that is, not interdepending).In addition, the 1st register and the 2nd register are regularly exported canned data according to the information of the timing storage input of the clock signal of being imported according to this.
The change process of the setting value of being undertaken by the 1st register and the 2nd register is described here, simply.At first, the situation of carrying out the setting value change in interframe is described.When having carried out the change of setting value, the new setting value of input in the 1st register.The 1st register outputs to the 2nd register to new setting value according to the new setting value of timing storage of the 1st clock signal.At this moment, because the 1st clock signal is different clock signals with the 2nd clock signal, that is, because the 1st clock signal is asynchronous with the 2nd clock signal, therefore store in the 1st register in the new setting value, the setting value of storing in the 2nd register is not used new setting value change.In other words, though in the 2nd register the new setting value of input, owing to do not import the 2nd clock signal, so the 2nd register is not stored new setting value in the current just makeover process at the frame of image correction.Therefore, the 2nd register outputs to image correction unit 15 to the original setting value of not change.Thus, at this moment only revised according to original setting value by the frame of image correction.And when next frame was carried out image correction, the 2nd clock signal was input to the 2nd register.Therefore, the 2nd register-stored outputs to image correction unit 15 to this new setting value from the new setting value of the 1st register input.Thereby the view data of this frame is carried out image correction according to new setting value.In addition, in the 2nd register, store under the situation of new setting value, move to (that is, " mirror image ") in the 2nd register with the identical content of canned data in the 1st register.
On the other hand, the 1st clock signal and the 2nd clock signal synchronous situation under, carry out new setting value simultaneously to the storage of the storage of the 1st register and new setting value to the 2nd register, according to this regularly, the setting value that the output of the 2nd register is new.In this case, therefore the 2nd register carries out the change of setting value with the switching of frame according to the new setting value of timing output of the processing of the next frame of beginning.Thus, in this case, an image is not used different setting values yet and is carried out image correction.
As mentioned above, in this example, constitute register cell 16, in the register of obtaining new setting value and register, share task for image correction output setting value with two registers.And then, in these two registers, supply with different clock signals.Thus, wait the timing of input setting value irrelevant, can carry out the output of the setting value that image correction uses and the change of setting value aptly with user.Thereby, can not make an image carry out image correction by the change of setting value with different setting values.
The image that shows when specifically, Fig. 3 (c) represents change setting.Fig. 3 (c) is illustrated in the processing procedure of the 2nd frame, the image that shows when setting value " x " changes to setting value " y ".In this case, the 1st frame display image A31, the 2nd frame display image A32, the 3rd frame display image A33.In the 1st frame, show with setting value " x " carry out image correction image A 31.In the 2nd frame, show the setting value " x " only be used in the 2nd register-stored carry out image correction image A 32.Show that such image is different with the clock signal of the 2nd register owing to being input to the 1st register, the 1st register-stored setting value " y ", output setting value " y ", and the 2nd register is not stored new setting value " y ", " x " outputs to image correction unit 15 original setting value.And, in the 3rd frame, show only use setting value " y " carry out image correction image A 33.Show that such image is that " y " outputs to image correction unit 15 this setting value because the 2nd register is stored in the setting value " y " of storing in the 1st register according to the timing with the corresponding frame synchronizing signal V_SYNC of the 3rd frame.
By above such register cell 16 that constitutes, even at the interframe change setting, can be in shown image yet confusion reigned.In addition, can not seemed to remain real-time demonstration from change setting to the constant time lag that shows by the identification of people's eyes.
Turn back to Fig. 1 once more, the processing in image correction unit 15 is described.In image correction unit 15, supply with the setting value d23 from register cell 16 outputs, the correction d15 that exports from image correction amount decision unit 13 and the view data d13 that YUV converter unit 12, has carried out the YUV conversion.Image correction unit 15 carries out image correction for view data d13 according to correction d15 and setting value d23.Specifically, image correction unit 15 carries out level trim, gamma correction, colourity correction and contrast correction for view data d13.By such image correction view data d31 output to RGB converter unit 17.
RGB converter unit 17 is transformed to the view data d31 of the YUV form of being supplied with the data (that is, " RGB conversion ") of RGB form.And, RGB converter unit 17 the RGB conversion view data d32 output to for example not shown image-display units (LCD screen etc.).And image-display units shows obtained view data d32.
In addition, in above-mentioned automatic image correcting circuit 100, register cell 16 is obtained setting value from main I/F11, and also can obtain setting value without main I/F11.In addition, frame synchronizing signal V_SYNC and clock signal IN_CLK obtain through main I/F11.For example, obtain these signals from CPU of the electronic equipment that carried automatic image correcting circuit 100 etc.
The automatic image correcting circuit 101 of expression variation among Fig. 4.Automatic image correcting circuit 101 only is to obtain aspect the path of setting value different with above-mentioned automatic image correcting circuit 100 at register cell 16.Register cell 16 in the automatic image correcting circuit 100 is obtained setting value d22 through main I/F11, and the register cell 16 of automatic image correcting circuit 101 is directly obtained setting value d4 from the outside.That is, the special-purpose universal serial bus of register cell 16 usefulness in the automatic image correcting circuit 101 is obtained setting value d4.Even the setting value of register cell 16 obtain the path as more than be out of shape, also can be in shown image confusion reigned not, can undesirable situation ground not take place in interframe do not carry out the change of setting value.In addition, the register cell 16 in the automatic image correcting circuit 101 can be obtained setting value d4 from the CPU in the electronic equipment that carries automatic image correcting circuit 101 etc.
The embodiment of register cell 16
Below, use Fig. 5～Fig. 7 that the embodiment of register cell 16 is described.
At first, Fig. 5 represents the object lesson of the setting value of storage in the register cell 16.Register cell 16 storage " automated graphics modification model ", " settings of automated graphics modification region ", " setting of automated graphics correction statistical value calculated value ", " contrast correction setting ", " colourity correction setting ", " gamma correction setting ", " scene detection setting ".
" automated graphics modification model " is the information of 4 bits, has " M0 ", " M1 ", " M2 ", " M3 "." M0 ", " M1 ", " M2, " M3 " are respectively the information of 1 bit." M0 " is the information that determines whether to carry out the colourity correction, and " M1 " is the information that determines whether degree of comparing correction, and " M2 " is the information that determines whether to carry out the gamma correction, and " M3 " is the information that determines whether to carry out level trim.They have " 0 " or " 1 " as information, and " 0 " meaning is carried out above-mentioned correction, and " 1 " meaning is not carried out above-mentioned correction.
" setting of automated graphics modification region " has the information of 4 bits of " area size " of the size in information of 9 bits of " regional start page " of page or leaf of information, the correction of decision beginning automated graphics of 9 bits of " regional initial row " of position in zone that decision carries out the automated graphics correction and the zone that the automated graphics correction is carried out in decision.
" setting of automated graphics correction statistical value calculated value " has the information of 10 bits of the information of 6 bits of " shade and high-high brightness threshold value " of threshold value of decision shade of image and high-high brightness and the standard deviation that uses during with the counting statistics value suitable " standard deviation calculation with ".
" index 0 ", " index 1 " of the information of the index of degree as a comparison (CI) when " contrast correction setting " has degree of comparing correction as the information of 8 bits respectively, " index 2 ", " index 3 " ...And then " contrast correction setting " has " correction 0 ", " correction 1 ", " correction 2 ", " correction 3 " of the correction of expression degree of comparing correction respectively as the information of 4 bits.
" colourity correction setting " has the information of 6 bits of " the correction limit " of the upper limit of the information of 8 bits of " correction factor " of intensity of information, the correction of decision colourity of 8 bits of " threshold value " of threshold value of decision colourity correction and the correction of decision colourity.
" gamma correction setting " has the information of 6 bits of " the correction limit " of the upper limit of the information of 6 bits of " correction factor " of intensity of information, the correction of decision gamma of 8 bits of " threshold value " of threshold value of decision gamma correction and the correction of decision gamma.
" scene detection measure set " has expression as the information of 8 bits respectively and carries out " level sets 0 " of the level of scene detection, " level sets 1 ", " level sets 2 " and " level sets 3 ".In addition, " scene detection setting " have " loading coefficient 0 ", " loading coefficient 1 ", " loading coefficient 2 " and " loading coefficient 3 " of the information relevant respectively with the load that carries out scene detection as the information of 8 bits.
Secondly, processing in the register cell 16 of embodiment is described.
Fig. 6 represents the schematic configuration of the register cell 16 of embodiment.Register cell 16 possesses register 161 and register 162.In register 161, input (also comprises setting value d4 with the corresponding signal d22 of setting value as data.Below, be that representative describes with setting value d22), as clock input clock signal IN_CLK.Setting value d22 and clock signal IN_CLK supply with from main I/F11.In addition, register 161 outputs to register 162 to signal Q1.In addition, register 161 detects the rising edge of clock signal IN_CLK, is taken into the setting value d22 (breech lock) that is imported according to the timing of this rising edge.In this case, by being taken into setting value d22, according to the signal Q1 of content alteration register 161 outputs of setting value d22.
As mentioned above, register 161 plays the effect of the 1st register, and register 162 plays the effect of the 2nd register.In addition, clock signal IN_CLK is corresponding with the 1st clock signal, and frame synchronizing signal V_SYNC is corresponding with the 2nd clock signal.
Secondly, use sequential chart shown in Figure 7 to specifically describe the signal of input and output in above-mentioned register 161 and register 162.Input/output signal in the register cell 16 when Fig. 7 represents to carry out the change of setting value.Fig. 7 (a) expression is input to the frame synchronizing signal V_SYNC in the register 162, Fig. 7 (b) expression is input to the signal d22 in the register 161, Fig. 7 (c) expression is input to the clock signal IN_CLK in the register 161, Fig. 7 (d) expression is from the signal Q1 of register 161 outputs, and Fig. 7 (e) expression is from the signal Q2 of register 162 outputs.In addition, the cycle of frame synchronizing signal V_SYNC (that is image duration) is suitable with the interval of moment T12 with the moment T11 constantly that rises as signal.In addition, suppose in image duration, to have carried out the change of setting value.Thus, clock signal IN_CLK is for example in moment T11 and the rising of the moment T2 between the T12 constantly.
Shown in Fig. 7 (b), new setting value d22 is input in the register 161.Register 161 at moment T2, reads in the setting value d22 that is imported specifically according to the timing of the rising edge of clock signal IN_CLK.Therefore, shown in Fig. 7 (d), the signal Q1 that exports from register 161 changes at moment T2.
On the other hand, register 162, reads in from the signal Q1 of register 161 outputs specifically at moment T12 according to the timing of the rising edge of frame synchronizing signal V_SYNC.Therefore, shown in Fig. 7 (e), the signal Q2 that exports from register 162 changes at moment T12.In other words, in register 162, because till moment T12, frame synchronizing signal V_SYNC does not rise, therefore an image duration midway, even will change the signal Q1 that is input in the register 162, the signal Q2 of register 162 outputs does not change yet.Thus, an image duration midway owing to do not change from the signal Q2 of register 162 output, therefore a frame can enough identical setting values carry out image correction.
According to the above, when having changed setting value, only carried out image correction with original setting value by the frame of image correction, next frame is only revised with new setting value.That is, even in the change that has setting value midway of frame, a frame is not used different setting values yet and is carried out image correction.Thus, even at the interframe change setting, can be on shown image yet confusion reigned.
Electronic equipment
Secondly, the example of the electronic equipment that has been suitable for automatic image correcting circuit 100,101 of the present invention is described.Fig. 8 is the integrally-built summary construction diagram that expression has been suitable for electronic equipment of the present invention.The electronic equipment here has the control module 410 as the liquid crystal indicator 700 of display unit and this device of control.Here, liquid crystal indicator 700 conceptually is divided into screen tectosome 403 and is described with the driving circuit 402 of formations such as semiconducter IC.The automatic correction circuit 100,101 of image of the present invention can be arranged in the driving circuit 402.Control module 410 has display message output source 411, display message treatment circuit 412, power circuit 413, timing generator 414.
Display message output source 411 possesses the storage unit that constitutes by the storer of ROM (ROM (read-only memory)) or RAM formations such as (random access memory), by magnetic recording disk or optical recording etc., data image signal is carried out the tuned circuit of tuning output, constitute the various clock signals that generate according to by timing generator 414, display message is supplied to display message treatment circuit 412 according to the form of the picture signal of predetermined format etc.
Display message treatment circuit 412 possesses string-and well-known circuit such as translation circuit, amplification and negative circuit, rotation circuit, gamma correction circuit, clamp circuit, carry out the processing of the display message of being imported, this image information is supplied to driving circuit 402 with clock signal clk.Driving circuit 402 comprises scan line drive circuit, data line drive circuit and check circuit.In addition, power circuit 413 is supplied with predetermined voltage respectively in each above-mentioned inscape.
Secondly, the object lesson that has been suitable for electronic equipment of the present invention is described with reference to Fig. 9.
At first, illustrate automatic image correcting circuit 100,101 of the present invention is useful in example in the personal computer (so-called notebook computer) of pocket.Fig. 9 (a) is the oblique view of the structure of this personal computer of expression.As shown in the drawing, personal computer 710 possesses main part 712 with keyboard 711 and the display unit 713 that has been suitable for LCDs of the present invention.
Secondly, the example that automatic image correcting circuit 100,101 of the present invention is useful in the portable telephone is described.Fig. 9 (b) is the oblique view of the structure of this portable telephone of expression.As shown in the drawing, portable telephone 720 is removed beyond a plurality of action buttons 721, possesses receiving mouth 722, mouth piece 723 and has used the display unit 724 of liquid crystal indicator.
In addition, as the electronic equipment that can be suitable for automatic image correcting circuit 100,101 of the present invention, remove above-mentioned beyond, can also enumerate LCD TV, videophone etc.
Claims (4)
1. automatic image correcting circuit, this automatic image correcting circuit automatically carries out image correction for obtained view data, it is characterized in that:
Possess
Be stored in the storage unit of the setting value of using in the above-mentioned image correction;
When carrying out above-mentioned image correction for the view data of a frame, read the sensing element of the setting value of said memory cells storage at every turn; With
According to the timing different, in said memory cells, write the writing unit of new setting value with above-mentioned sensing element.
2. automatic image correcting circuit according to claim 1 is characterized in that:
Said memory cells has the 1st register and the 2nd register,
Above-mentioned sensing element reads out in the setting value of storing in above-mentioned the 2nd register,
Above-mentioned writing unit has the 1st writing unit and the 2nd writing unit,
Above-mentioned the 1st writing unit writes above-mentioned new setting value in above-mentioned the 1st register,
Above-mentioned the 2nd writing unit is written to the setting value of storing in above-mentioned the 1st register in above-mentioned the 2nd register.
3. automatic image correcting circuit according to claim 2 is characterized in that:
Above-mentioned the 2nd writing unit is written to the setting value of storing in above-mentioned the 1st register in above-mentioned the 2nd register according to the frame switching timing of above-mentioned view data.
4. electronic equipment is characterized in that:
Possess
The described automatic image correcting circuit of each of claim 1 to 3; With
Show that above-mentioned automatic image correcting circuit has carried out the image-display units of the view data of image correction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004189642A JP2006014016A (en) | 2004-06-28 | 2004-06-28 | Automatic image correcting circuit |
| JP189642/2004 | 2004-06-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1716314A true CN1716314A (en) | 2006-01-04 |
| CN1324876C CN1324876C (en) | 2007-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100797804A Expired - Fee Related CN1324876C (en) | 2004-06-28 | 2005-06-28 | Automatic image correction circuit |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7576744B2 (en) |
| JP (1) | JP2006014016A (en) |
| KR (1) | KR100785567B1 (en) |
| CN (1) | CN1324876C (en) |
| TW (1) | TWI277946B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045490A (en) * | 2009-10-15 | 2011-05-04 | 奥林巴斯株式会社 | Image processing device and image processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3873918B2 (en) * | 2003-03-14 | 2007-01-31 | セイコーエプソン株式会社 | Image processing apparatus, image processing method, and image processing program |
| US7813585B2 (en) * | 2003-07-28 | 2010-10-12 | Olympus Corporation | Image processing apparatus, image processing method, and distortion correcting method |
| US20080036758A1 (en) * | 2006-03-31 | 2008-02-14 | Intelisum Inc. | Systems and methods for determining a global or local position of a point of interest within a scene using a three-dimensional model of the scene |
| JP5139655B2 (en) * | 2006-08-28 | 2013-02-06 | Ｎｅｃカシオモバイルコミュニケーションズ株式会社 | Electronic equipment and programs |
| JP5332172B2 (en) * | 2006-11-10 | 2013-11-06 | セイコーエプソン株式会社 | Image display control device |
| US7986295B2 (en) * | 2006-11-10 | 2011-07-26 | Seiko Epson Corporation | Image display control device |
| US7990402B2 (en) * | 2006-11-10 | 2011-08-02 | Seiko Epson Corporation | Image display control device |
| JP5104187B2 (en) * | 2007-10-15 | 2012-12-19 | ソニー株式会社 | VIDEO / AUDIO SETTING INFORMATION MANAGEMENT DEVICE, PROCESSING METHOD THEREOF, AND PROGRAM |
| JP5463656B2 (en) * | 2008-11-25 | 2014-04-09 | セイコーエプソン株式会社 | Electro-optical device driving apparatus and method, and electro-optical device and electronic apparatus |
| JP5683882B2 (en) * | 2009-10-15 | 2015-03-11 | オリンパス株式会社 | Image processing apparatus, image processing method, and image processing program |
| JP5994270B2 (en) * | 2012-02-09 | 2016-09-21 | 株式会社リコー | Image correction apparatus, image correction system, image correction method, and program |
| US20170365209A1 (en) * | 2016-06-17 | 2017-12-21 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device, display device, and electronic device |
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| JPH05284355A (en) * | 1992-04-02 | 1993-10-29 | Murata Mach Ltd | Contrast correction circuit for picture data |
| JP3309738B2 (en) | 1996-11-01 | 2002-07-29 | 松下電器産業株式会社 | Image display device |
| JPH11122562A (en) * | 1997-10-09 | 1999-04-30 | Toshiba Corp | Image correction device |
| JPH11191894A (en) * | 1997-12-25 | 1999-07-13 | Toshiba Corp | Automatic luminance correction device |
| JP2000184006A (en) | 1998-12-21 | 2000-06-30 | Sanyo Electric Co Ltd | Data processor |
| JP2001350442A (en) * | 1999-10-04 | 2001-12-21 | Matsushita Electric Ind Co Ltd | Driving method for display panel, luminance correcting device and driving device for display panel |
| JP2002158946A (en) | 2000-11-20 | 2002-05-31 | Seiko Epson Corp | Projector and method for correcting image distortion |
| JP3636672B2 (en) * | 2001-04-06 | 2005-04-06 | 松下電器産業株式会社 | Display processing device |
| JP2003348442A (en) | 2002-05-29 | 2003-12-05 | Hitachi Kokusai Electric Inc | Television camera |
| JP3855881B2 (en) * | 2002-08-09 | 2006-12-13 | セイコーエプソン株式会社 | Color correction circuit and image display apparatus having the same |
| JP4172275B2 (en) * | 2003-01-08 | 2008-10-29 | セイコーエプソン株式会社 | Image processing for image data |
| JP2004274641A (en) | 2003-03-12 | 2004-09-30 | Seiko Epson Corp | Introducing gradation correction amount in response to degree of variance in gradation value |
-
2004
- 2004-06-28 JP JP2004189642A patent/JP2006014016A/en active Pending
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2005
- 2005-06-17 TW TW094120315A patent/TWI277946B/en not_active IP Right Cessation
- 2005-06-20 US US11/155,673 patent/US7576744B2/en not_active Expired - Fee Related
- 2005-06-28 CN CNB2005100797804A patent/CN1324876C/en not_active Expired - Fee Related
- 2005-06-28 KR KR1020050056041A patent/KR100785567B1/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045490A (en) * | 2009-10-15 | 2011-05-04 | 奥林巴斯株式会社 | Image processing device and image processing method |
| CN102045490B (en) * | 2009-10-15 | 2014-01-08 | 奥林巴斯株式会社 | Image processing device and image processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1324876C (en) | 2007-07-04 |
| US7576744B2 (en) | 2009-08-18 |
| JP2006014016A (en) | 2006-01-12 |
| TWI277946B (en) | 2007-04-01 |
| KR20060048580A (en) | 2006-05-18 |
| KR100785567B1 (en) | 2007-12-13 |
| TW200606810A (en) | 2006-02-16 |
| US20050286061A1 (en) | 2005-12-29 |
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